Olumi, Aria F.

ABSTRACT Introduction Non‐muscle invasive bladder cancer (NMIBC) is a chronic disease with a lifelong treatment burden that may cause substantial urinary morbidity. Such quality‐of‐life changes remain understudied. We therefore evaluated the incidence and predictors of treatment for overactive bladder (OAB) among older adults following diagnosis of NMIBC. Materials and Methods We identified adults aged 66–89 years with newly diagnosed NMIBC from 2007 to 2017 in the linked SEER‐Medicare database. We examined the incidence of treatment initiation for OAB following initial transurethral resection of bladder tumor (TURBT) and evaluated associations with baseline characteristics using Cox regression. Results We identified 9,819 patients, of whom 68% had Ta disease, 29% had T1 disease, and 4% had CIS. Within the first 12 months of TURBT, 7% of patients received treatment for OAB, and this increased to 15% of patients at 5 years. In the first year, the most utilized therapies were anticholinergic medications (early 3.72%, late 2.74%) and beta‐3 agonists (early 0.11%, late 0.32%), while procedural OAB therapy utilization was rare (0.2%). On multivariable analysis, female gender (HR 1.26, 95% CI 1.11–1.42), congestive heart failure (HR 1.21, 95% CI 1.03–1.43), and T1 tumor stage (HR 1.27, 95% CI 1.12–1.44 vs. Ta) were independently associated with an increased risk of OAB treatment. Conclusions The incidence of OAB requiring treatment among patients with NMIBC is substantial, with approximately one in six patients receiving treatment by 5 years after diagnosis. Predictive clinicopathologic features for OAB treatment—including, sex, high‐risk tumor features, and repeat TURBT—may be useful for clinical counseling.

Abstract Minimally invasive image-guided tumor ablation techniques have been established as safe, effective methods to treat a variety of unresectable soft tissue tumors. Standard thermal ablation methods include radiofrequency ablation, microwave ablation, and cryoablation. However, newer non-thermal and/or non-invasive ablation techniques are now available as alternative options to treat soft tissue tumors, particularly those that are near critical structures or otherwise susceptible to thermal energy sink effects. The 4 types of emerging ablation techniques discussed in this review are as follows: irreversible electroporation, pulsed electric field, high-intensity focused ultrasound, and histotripsy. While the clinical trials evaluating the safety and efficacy of these ablation techniques are in their early stages, initial results are promising in the treatment of various cancers at different stages. These include potential synergistic effects when combined with chemotherapy and immunotherapy.

39 Background: The excess risk of high-grade prostate cancer in the Prostate Cancer Prevention Trial (PCPT) among men randomized to finasteride raised concerns that a chemoprevention benefit would be offset by increased mortality. Two 2019 publications had contrasting results whether 5-ARIs increased prostate cancer mortality. In PCPT, there was no excess prostate cancer mortality. In a VA study, 5-ARI use was associated with later stage at diagnosis and 39% higher prostate cancer mortality risk. We studied men with regular access to health care and screening to address this conflicting evidence. Methods: We performed two parallel analyses in the Health Professionals Follow-up Study. 5-ARI use was reported on biennial questionnaires starting in 1996. In line with PCPT, we studied 38,047 men for cancer incidence and mortality through 2016. In line with the VA study, we undertook a case-only study of 4,225 patients with localized/locally advanced cancers followed similarly. We estimated hazard ratios (HR) and 95% confidence intervals accounting for screening patterns, lifestyle factors, and concomitant medications. Results: 5-ARI ever-users (n = 4,101; 10.7%) were more likely to have had regular PSA screening (74% vs. 57% nonusers) and a negative prostate biopsy before diagnosis. Neither ever 5-ARI use (HR 1.08, 0.73-1.60, 445 events) nor long-term use ( > 4 years, HR 1.03, 1.03-2.02) were associated with lethal prostate cancer. There was no difference in stage. Diagnostic PSA levels were lower in 5-ARIs users (10.0 vs. 16.0 ng/ml in never-users). Among nonmetastatic cases, 278 men died of prostate cancer; there was no association between 5-ARIs and prostate cancer survival (HR 0.85, 0.51-1.43). Conclusions: Our results align with PCPT and show no excess risk of lethal prostate cancer, no higher stage at diagnosis, and no excess mortality after diagnosis associated with 5-ARI. Men on 5-ARIs had more interactions with health care, which may have led to higher quality care. This contrasts with the VA study where men on 5-ARIs were diagnosed later due to suppressed PSA and had worse survival. These results show the importance of real-world data in framing the benefits and risks associated with 5-ARIs.